OUR FRUIT INSTITUTES. 



185 



Use one pint in forty gallons of water, add- 

 ing two pounds fresh slacked lime. This is 

 excellent for all insects that eat the foliage, 

 such as the canker worm, tent caterpillar, 

 etc. It is also useful in killing curculio and 

 codling moth. It may be used in the Bor- 

 deaux mixture. 



QUESTIONS ANSWERED BY MR. G. E. FISHER. 



Is Gilletfs lye a good spray? 



It is useful in cleansing the bark ot trees, 

 but it is soda, not potash, and I think the 

 latter more useful. Mr. D. J. MacKinnon 

 said he had used Gillett's lye to counteract 

 the evil effects of an over dose of crude pet- 

 roleum on his cherry trees, and had thereby 

 saved his trees. 



What is the cost of potash and fish oil? 



Potash costs from seven to eight cents a 

 pound and fish oil thirty-five cents a gallon. 



Do you advise applyi?ig crude petroleum 

 without dilution with water? 



No, I do not. It is much safer to apply 

 it diluted. Crude petroleum should not be 

 applied to peach trees at all ; they are quite 

 susceptible to injury from it. 



Would crude petroleum destroy the eggs oj 

 the Canker wotm as well as cherry aphis? 



I am inclined to think it would if applied 

 just before their hatching season. 



Where does the aphis winter? 



The eggs remain in the bark near the buds 

 all winter, and hatch out just before the buds 

 open, so the young are waiting there to teed 

 upon the leaves. Mr. Emory of Burlington, 

 used whale oil soap, two pounds to a gallon 



of water, and thoroughly cleaned out the 

 aphis with that spray. 



Mr. L. Wocdverton said he had used a 

 very fine kerosene spray, with an atomizer 

 to his rose bushes for destruction of green 

 aphis without injury to the young foliage, 

 and he proposed to try undiluded crude pet- 

 roleum for cherry aphis, put on with a very 

 fine nozzle. 



Mr. W. H. Bunting had used diluted crude 

 petroleum for scale and found that he could 

 keep it under control by this spray. 



Is not the Lime, Salt and Sulphur wash 

 more expensive than Bordeaux? 



No, the one application costs about one 

 cent a gallon, possibly a little more than one 

 application of the Bordeaux, but you see you 

 only apply it once, coating the tree before 

 the foliage comes out. 



At Mr. Pettit's, we noticed that the ten 

 gallons mixed covered ten medium sized 

 pear trees, so in that case, the mixture 

 costs only one cent a tree. The men were 

 about five minutes at each tree. 



Two hours is surely a long time to wait for 

 the mixture to cook? 



Well, if you have much spraying you 

 need something bigger than a kettle. You 

 need two large boiling pans, and let one pan 

 full boil while you apply the other, and in 

 this way you can keep the pump moving. 



Does peach curl winter on the trees? 



I have no hesitation in saying that it does, 

 and I think apple scab does also ; hence 

 cleaning the tree bark may rid use of both 

 scab and peach curl. 



;€ 



